Range Native to central and eastern North America, from Manitoba, Ontario, New York and Massachusetts; south to Florida, west to Texas, and north to South Dakota and Minnesota; 30-650 ft (10-200 m).

Discussion Also known as: woodland lettuce, Florida blue lettuce, Florida wild lettuce, blue lettuce, blue wood lettuce, etc. Although it is listed as threatened or endangered in Michigan and New York, it is considered weedy or invasive in some areas. All Latuca sp. are cousins of the common garden lettuce, Latuca sativa. Several have blue flower heads, among them a more western species, Large-flowered Blue Lettuce (L. pulchella), with larger and fewer flower heads than this species and foliage covered with white waxy bloom. Tall Blue Lettuce (L. biennis), found from southern Canada south to North Carolina and west to Iowa, has crowded clusters of flower heads and tan fruit bristles.